By Aftab Ahmed, Adnan Abidi and Saeed Shah JAMMU, India/ISLAMABAD (Reuters) - Blasts rang out across the city of Jammu in Indian Kashmir late on Thursday during what India's military said was a Pakistani drone and missile attack across the disputed region on the second day of clashes between the nuclear-armed neighbours.

India fired attack drones into Pakistan on Thursday, wounding four soldiers, the Pakistani military said. India, meanwhile, accused its neighbor of attempting its own attack, as tensions soared between the nuclear-armed rivals.

Amid fears of further escalation, Pakistan said it shot down 12 drones overnight, while India said it targeted an air defense system in Lahore.